Khairat Adesina

Full Stack Engineer · Systems, SaaS & AI Platforms

I build scalable SaaS platforms, AI products, and reliable digital systems.

Full Stack Engineer focused on SaaS platforms, transactional systems, and AI integrated products. I build across frontend, backend, and cloud infrastructure with a strong focus on reliability, performance, and clean user experience.

Based in Nigeria · Available for full time roles, contract work, and product collaborations

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SaaS systems

Multi tenant workflows, billing, access control, and product UX.

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AI workflows

OpenAI, Anthropic, automation, and applied AI product thinking.

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Payment flows

Webhook driven reconciliation and deterministic payment states.

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Cloud delivery

Frontend, backend, AWS events, serverless, and deployment paths.

Experience

Product, platform, and systems work

A snapshot of the roles and product categories I have worked across.

2026 — Present

Software Engineering Lead

Multi tenant SaaS platform

  • - Replaced cron based processing with event driven architecture using AWS EventBridge and Lambda.
  • - Built a tenant aware email identity workflow with AWS SES for secure multi tenant email configuration.
  • - Engineered multi currency subscription billing and payment flows with reliable webhook driven reconciliation.
  • - Developed AI assisted tooling using OpenAI and Anthropic APIs to automate workflows.

2024 — 2025

Full Stack Engineer, Technical Lead

Booking and transactional platform

  • - Strengthened tenant aware access control and data isolation across a multi tenant product.
  • - Designed idempotent payment APIs and deterministic payment state flows.
  • - Led migration from a legacy SPA to a Next.js SSR and ISR architecture.
  • - Optimized databases and query performance across PostgreSQL and MongoDB under peak load.

Core Stack

Tools and systems I work with

From frontend interfaces to backend services, databases, cloud infrastructure, and AI tooling.

Frontend

Next.jsReactTypeScriptTailwind CSSTanStack QueryRedux

Backend

FastAPIPythonNode.jsExpressREST APIsJWTRBAC

Database

PostgreSQLMongoDBMySQLRedis

Cloud & DevOps

AWSDockerCI/CDEventBridgeLambdaSES

AI & Automation

OpenAIAnthropicAWS LexWorkflow Automation

Education

Applied research roots, engineering execution

My academic path gives me a useful bridge between software engineering, AI systems, and research-led problem solving.

AI, data, and applied research

M.Sc. Computational Food Technology

University of Ibadan

Connects software engineering with computational methods for smarter systems, automation, and research-driven product work.

Applied science foundation

B.Sc. Food Science and Technology

Kwara State University

Built a research minded foundation in quality, process thinking, and applied problem solving.

Blog

Writing about systems and software design

Short technical essays that make engineering tradeoffs and hidden platform behavior easier to reason about.

Systems2026 · 8 min read

What Happens When You Type https://www.google.com in Your Browser and Press Enter?

A clear tour through DNS, network handshakes, browser rendering, and the hidden systems work behind one familiar action.

Read article
Frontend2026 · 6 min read

React.js vs Next.js: An In-Depth Comparison

A practical breakdown of how React and Next.js differ, when to use each, and how framework choices shape modern web products.

Read article

Let's build something thoughtful, reliable, and useful.

Whether you're hiring, collaborating, or exploring an idea, I'd love to hear about it.